Change to C++20 standard

this seems to fix the build error:
=>  error: ‘starts_with’ has not been declared in ‘std::string’

2 files changed, 3 insertions, 2 deletions

diff --git a/.SRCINFO b/.SRCINFO
index 7ea0fce6fb59..52e44dbb6de6 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,7 +1,7 @@
 pkgbase = dia-git
 	pkgdesc = A GTK+ based diagram creation program
 	pkgver = 6871.4139f5aff
-	pkgrel = 1
+	pkgrel = 2
 	url = https://wiki.gnome.org/action/show/Apps/Dia
 	arch = x86_64
 	license = GPL-2.0-or-later
diff --git a/PKGBUILD b/PKGBUILD
index f2e9eac21292..cdfbb864cbea 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -6,7 +6,7 @@
 pkgname=dia-git
 _pkgname=dia
 pkgver=6871.4139f5aff
-pkgrel=1
+pkgrel=2
 pkgdesc="A GTK+ based diagram creation program"
 arch=('x86_64')
 license=('GPL-2.0-or-later')
@@ -29,6 +29,7 @@ pkgver() {
 prepare() {
   cd "${_pkgname}"
   sed -i "s/cc.find_library('ogdf'/cc.find_library('OGDF'/g" meson.build
+  sed -i 's/gnu++17/gnu++20/' meson.build
   ln -s ../../xpm-pixbuf subprojects
 }